6825405877 has 2 divisors, whose sum is σ = 6825405878. Its totient is φ = 6825405876.

The previous prime is 6825405863. The next prime is 6825405887. The reversal of 6825405877 is 7785045286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4211231236 + 2614174641 = 64894^2 + 51129^2 .

It is a cyclic number.

It is not a de Polignac number, because 6825405877 - 2¹¹ = 6825403829 is a prime.

It is a super-2 number, since 2×6825405877² = 93172330771572278258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6825405887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3412702938 + 3412702939.

It is an arithmetic number, because the mean of its divisors is an integer number (3412702939).

Almost surely, 2^6825405877 is an apocalyptic number.

It is an amenable number.

6825405877 is a deficient number, since it is larger than the sum of its proper divisors (1).

6825405877 is an equidigital number, since it uses as much as digits as its factorization.

6825405877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3763200, while the sum is 52.

The square root of 6825405877 is about 82616.0146521242. The cubic root of 6825405877 is about 1896.8929714982.

The spelling of 6825405877 in words is "six billion, eight hundred twenty-five million, four hundred five thousand, eight hundred seventy-seven".